198. The speaker _____ several other subjects in the course of his talk but mostly kept himself to the main topic.

　 A. held on　　 B. worked out　　 C. touched on　　 D. kept out of

[答案]C. touched on

[注释]touch on简单谈到。参阅Ⅲ.178注释。

197. At first the institute refused to purchase the telescope, but this decision was _____ revised.

　 A. occasionally　　 B. consequently

　 C. successively　　 D. subsequently.

[答案]D. subsequently.

[注释]subsequently(=afterwards)随后，其后。

196. No one imagined that the apparently _____ businessman was really a criminal.

A. respectful B. respectable C. respective　 D. respected

[答案]B. respectable.

[注释]respectable受到尊敬的。详见117.注释。

本题译文：没有一个想象到这个看起来令人尊敬的商人竟是一个罪犯。

195. We won't know whether it will be successful. We won't know whether there will be good _____.

　 A. ends　　 B. results　　 C. effects　　 D. causes

[答案]B. results.

[注释]result意为“由某种活动或某种原因所产生的结果”，如：obtain(=get, attain, gain win, secure)good results(取得好结果)，publish the results(公布成绩)。

194. The government placed _____ on the numbers of foreign cars that could be imported.

　 A. limitations　 　　B. restraint

　 C. requirements　　 D. restrictions

[答案]D. restrictions.

[注释]restriction(可数名称)限制性规定：It is a club with rigid restrictions on its membership.Limitation局限性，不足之处，不利之处(可数)：1)I know my limitations.(我了解我的不足之处。) 2)Every from of art has its limitations.(每种艺术形式都有其局限性。)

193. He ate what he could, and gave the _____ of the food to the birds.

A. remain　　 B. uneaten　　 C. rest　　 D. part

[答案]C. reset

[注释]the rest (of)剩余部分，其余。remain作“剩余物”(=what is left)解时常用复数形式，如：the remains of a meal(残羹剩饭)。[ALI]《新英汉辞典》认为也可以用单数，可作参考。

192. Mary had taken _____ to see that her guests had everything that they could possibly want.

　 A. efforts　　 B. pains　　 C. attempts　　 D. endeavors

[答案]B. pains.　　　　　　

[注释]take pains to do sth.下苦功夫做某事：I'm grateful because you have taken pains to show me how to do the work.

191. It isn't so much whether he works hard; the question is whether he works _____.

　 A. above all　　 B. in all　　 C. at all　　 D. after all

[答案]C. at all.

[注释]at all全然，真地(常用于肯定句中)：If you do it at all, do it well.(你若真做，就得做好。)not...at all全不，毫不：He doesn't seem at all interested in my plane.(他似乎对我的计划毫无兴趣。)above all(=most important of all)最重要的。in all总计：We were fifteen in all.(我们总计15人。)after all毕竟，终究。

本题译文：他是否努力工作到并不重要，问题是他是否真正地做了。

190. Expected noises are usually more _____ than unexpected ones of the like magnitude.

　 A. manageable　　 B. controllable

　 C. tolerable　 　D. perceivable

[答案]C. tolerable.

[注释]tolerable(=fairly good, not too bad)可忍受的：The pain has become tolerable. manageable可处理的；可管理的；controllable可控制的；perceivable可觉察的。

本题译文：料想到的嗓音通常情况下比起等量的意外嗓音来说是可以忍受的。

189. Experts say walking is one of the best ways for a person to _____ healthy.

A. preserve　　 B. stay　　 C. maintain　　 D. reserve

[答案]B. stay.

[注释]preserve, stay, maintain, reserve这4个词均有“保持”，“维持”之意。stay后可接形容词作表语：The weather stayed wet for three days.其他3个词均为及物动词。Preserve(=keep safe from decay, risk, harm, danger, going bad etc.)保存，保护：1)Policemen preserve order in the streets.(警察在街上维持秩序。) 2)We must preserve our natural resources.(我们必须保护自然资源。)3)You paint woodwork to preserve it.(你油漆木制品以防腐烂。)Maintain(=keep up)保持，维持，维修。Reserve(=keep for a special purpose; store)保留，预定：1)I'll reserve my opinion at his time,(这时我将保留我的看法。) 2)I'll phone up today and reserve a room.(我今天将打电话预定一个房间。)

本题译文：专家们说，步行是一个人保持健康的最好方法之一。